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Finding the Fourth Proportional to 604,998.30, 907,497.45 and 393,491.10

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Solution

The fourth proportional to 604,998.30, 907,497.45 and 393,491.10 is: 590,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,998.30 : 907,497.45 = 393,491.10 : x
  2. Step 2: Convert to fraction form
    604,998.30/907,497.45 = 393,491.10/x
  3. Step 3: Cross multiply
    604,998.30x = 907,497.45 × 393,491.10
  4. Step 4: Simplify right side
    604,998.30x = 357,092,169,847.70
  5. Step 5: Solve for x
    x = 357,092,169,847.70/604,998.30
  6. Step 6: Final answer
    x = 590,236.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.